EP1039270B1 - Wasserzähler - Google Patents
Wasserzähler Download PDFInfo
- Publication number
- EP1039270B1 EP1039270B1 EP00106302A EP00106302A EP1039270B1 EP 1039270 B1 EP1039270 B1 EP 1039270B1 EP 00106302 A EP00106302 A EP 00106302A EP 00106302 A EP00106302 A EP 00106302A EP 1039270 B1 EP1039270 B1 EP 1039270B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water meter
- resistor
- reed contact
- pulse generator
- protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
- G01F1/075—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission with magnetic or electromagnetic coupling to the indicating device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/10—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission
- G01F1/115—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission with magnetic or electromagnetic coupling to the indicating device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/007—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus comprising means to prevent fraud
Definitions
- the invention relates to a water meter with a magnetic pulse generator, wherein a first reed contact is connected in series with a first protective resistor.
- Such water meters are known. It is usually possible to use existing water meters by plugging in a magnetic pulse generator, which without violating the Verification seals of the water meter is possible. Thus, even if the A simple exchange is possible for the pulse counter. Via the magnetic pulse generator impulse transmission to radio and counting modules.
- the usual pulse sequences are 10 l / pulse or 100 l / pulse.
- Magnets of the pulse generator are manipulated.
- the magnet blocks the magnetic one Encoder of the pulse counter so that no further counting pulses take place.
- the object of the invention is therefore to provide a water meter according to the preamble develop in which a defect or manipulation can be detected.
- This object is achieved in that a second reed contact with a second parallel, higher resistance connected in parallel to the first Reed contact and the first protective resistor is switched.
- This second resistor is used to check the functionality of the cable. To this It is also possible to detect manipulation of the magnetic pulse generator.
- An embodiment of the invention is that the second resistor at least Is 1,000 times larger than the first protective resistor.
- display means for displaying the circuit of the second reed contact are provided.
- the water meter has a magnetic protective hood.
- the influence of external magnets can be reduced using the magnetic protective cover.
- An advantageous embodiment is that the magnetic pulse generator on the Water meter can be plugged on.
- the advantages of the invention consist essentially in the fact that a cable break or Attempted manipulation (e.g. cutting the cable) is detectable and detectable.
- a magnetic pulse generator is attached to a water meter.
- a first reed contact 1 is in series with one switched protective resistor 3 of 50 ⁇ is provided. Since this reed contact 1 easily with manipulated by a magnet, i.e. can be blocked, is according to the invention (Fig. 1) provided that a second reed contact 2 with a high-resistance connected in parallel therewith Resistor 4 of 100 k ⁇ is connected in parallel to the first reed contact 1.
- the circuit of the second reed contact detected and forwarded to a detection system or displayed via display means.
- the water meter can be equipped with a magnetic protective hood, e.g. made of sheet steel, be equipped to minimize the influence of external magnets.
- a magnetic protective hood e.g. made of sheet steel
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
- Paper (AREA)
- Details Of Flowmeters (AREA)
Description
- Fig. 1
- den Schaltplan eines erfindungsgemäßen magnetischen Impulsgebers,
- Fig. 2
- den Schaltplan eines Impulsgebers gemäß dem Stand der Technik.
Claims (5)
- Wasserzähler mit einem magnetischen Impulsgeber, wobei ein erster Reedkontakt mit einem ersten Schutzwiderstand in Reihe geschaltet ist, dadurch gekennzeichnet, daß ein zweiter Reedkontakt (2) mit einem dazu parallel geschalteten zweiten, höherohmigen Widerstand (4) parallel zu dem ersten Reedkontakt (1) und dem ersten Schutzwiderstand (3) geschaltet ist.
- Wasserzähler gemäß Anspruch 1, dadurch gekennzeichnet, daß der zweite Widerstand (3) mindestens 1.000fach größer ist als der erste Schutzwiderstand (4).
- Wasserzähler gemäß Anspruch 1, dadurch gekennzeichnet, daß Anzeigemittel zum Anzeigen der Schaltung des zweiten Reedkontaktes (2) vorgesehen sind.
- Wasserzähler gemäß Anspruch 1, dadurch gekennzeichnet, daß der Wasserzähler eine Magnetschutzhaube aufweist.
- Wasserzähler gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der magnetische Impulsgeber auf den Wasserzähler aufsteckbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29905399U | 1999-03-24 | ||
DE29905399U DE29905399U1 (de) | 1999-03-24 | 1999-03-24 | Wasserzähler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1039270A1 EP1039270A1 (de) | 2000-09-27 |
EP1039270B1 true EP1039270B1 (de) | 2003-06-18 |
Family
ID=8071326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00106302A Expired - Lifetime EP1039270B1 (de) | 1999-03-24 | 2000-03-23 | Wasserzähler |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1039270B1 (de) |
AT (1) | ATE243316T1 (de) |
DE (2) | DE29905399U1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10045207A1 (de) * | 2000-09-13 | 2002-03-28 | Abb Patent Gmbh | Wasserzähler mit einem Werkbecher zur Aufnahme eines mechanischen Zählwerkes |
DE20017890U1 (de) * | 2000-10-18 | 2001-01-25 | Karl Adolf Zenner Wasserzaehle | Vorrichtung zum Messen des Gas-, Wasser- und Wärmeverbrauchs o.dgl. |
RU2504738C1 (ru) * | 2012-08-10 | 2014-01-20 | Павел Эдуардович Мельников | Счетный блок водосчетчика |
RU2512693C2 (ru) * | 2012-08-10 | 2014-04-10 | Павел Эдуардович Мельников | Счетный блок водосчетчика и его электрическая схема |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4031362A (en) * | 1975-09-17 | 1977-06-21 | Zurn Industries, Inc. | Electronic remote reading system for a meter |
JPS52151039A (en) * | 1976-06-11 | 1977-12-15 | Ricoh Co Ltd | Opening and closing times reader of mechanical contacts |
DE3147921A1 (de) * | 1981-12-03 | 1983-07-28 | Kurt Michael 8220 Traunstein Desch | Ansteuerung einer dosierpumpe und eines gesonderten,einstellbaren zumessgliedes mit ein und demselben wasserzaehler und zumessglied |
-
1999
- 1999-03-24 DE DE29905399U patent/DE29905399U1/de not_active Expired - Lifetime
-
2000
- 2000-03-23 AT AT00106302T patent/ATE243316T1/de not_active IP Right Cessation
- 2000-03-23 EP EP00106302A patent/EP1039270B1/de not_active Expired - Lifetime
- 2000-03-23 DE DE50002566T patent/DE50002566D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE29905399U1 (de) | 1999-06-10 |
EP1039270A1 (de) | 2000-09-27 |
ATE243316T1 (de) | 2003-07-15 |
DE50002566D1 (de) | 2003-07-24 |
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